condition	mean	min	max
4 h after light	7.36528	6.12941	8.60115
8 h after light	6.208485	5.90588	6.51109
12 h after light	13.39435	13.0835	13.7052
4 h after dark	30.088133333333335	29.4157	30.6837
8 h after dark	21.854166666666668	21.4516	22.1167
12 h after dark	14.5975	13.762	15.7567